Finding the Fourth Proportional to 99,293.67, 137,026.19 and 53,971.75
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Solution
The fourth proportional to 99,293.67, 137,026.19 and 53,971.75 is: 74,481.52
Step by Step Solution
- Step 1: Write the proportion equation
99,293.67 : 137,026.19 = 53,971.75 : x - Step 2: Convert to fraction form
99,293.67/137,026.19 = 53,971.75/x - Step 3: Cross multiply
99,293.67x = 137,026.19 × 53,971.75 - Step 4: Simplify right side
99,293.67x = 7,395,543,270.13 - Step 5: Solve for x
x = 7,395,543,270.13/99,293.67 - Step 6: Final answer
x = 74,481.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.